Does repairing engine valves count as a major overhaul?
1 Answers
Repairing engine valves is considered a major overhaul, as valve repairs are quite complex. Here is an introduction to the relevant content: 1. Major automotive overhaul: A major automotive overhaul refers to the process where a new car or a car that has undergone a major overhaul is subjected to diagnostic testing and technical evaluation after traveling a certain distance or period. 2. Repair and replacement: It is a general term for restorative repairs that completely or nearly completely restore the vehicle's technical performance by repairing or replacing automotive parts. Below are extended recommendations for running-in after a major overhaul and for new cars: 1. Engine speed: The engine speed should not be too high; it is best not to exceed 3000 rpm. 2. Cold start: After a cold start, it is advisable to allow a warm-up period until the engine speed changes before driving. 3. Load regulations: The vehicle must adhere to the load regulations for its model, preferably not exceeding 70% of the specified load capacity. 4. Avoid sudden acceleration: Try to avoid sudden acceleration and hard braking. Hard braking can cause significant impact damage to a new engine, especially sudden acceleration, which can severely affect the running-in of new engine components, directly impacting the fit clearance between parts.
